It uses Bluetooth to unlock the car but remote it uses internet. The app is how you remote lock the car. It doesn’t under blue tooth for that. It uses the internet.

Did you go try it on your Tesla ? That’s exactly how it works on mine.

It doesn’t. The app needs it. The phone does not. If you want to unlock using the app. You need internet connectivity. Go try it. I just did and it works fine on my 2019 model 3 as I don’t have coverage where I park.

Thats what I said. I’ve had a Tesla for years. Only the app requires the internet

The smart card or phone don’t. The app does.

The physical key is a smart card. The size of a credit card